☰

GotoArXivCN

Open arXiv sites with arXivCN

  1. // ==UserScript==
  2. // @name         GotoArXivCN
  3. // @namespace    https://github.com/zzilch/GotoArXivMirrors
  4. // @homepage     https://github.com/zzilch/GotoArXivMirrors
  5. // @version      1.1
  6. // @author       zzilch
  7. // @description  Open arXiv sites with arXivCN
  8. // @include      /^https?://(.*\.)?arxiv\.org/.*/
  9. // @include      http://xxx.itp.ac.cn/*
  10. // @run-at       document-start
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.     // useful funcitons
  16.     function incompletePDF(url){ return url.includes('/pdf') && !url.endsWith('pdf') }
  17.     function abstractURL(url){ return url.includes('/abs') }
  18.  
  19.     // available mirrors
  20.     let mirrors = {
  21.         'Main':'arxiv.org',
  22.         'China':'xxx.itp.ac.cn',
  23.         'Germany':'de.arxiv.org',
  24.         'India':'in.arxiv.org',
  25.     }
  26.  
  27.     // auto redirect to ArxivCN
  28.     if(!location.href.includes(mirrors.China)){
  29.         let url = location.href.replace(location.hostname,mirrors.China).replace('https','http')
  30.         url = incompletePDF(url) ? url+'.pdf' : url
  31.         location.replace(url)
  32.     }
  33.  
  34.     // append the filename extension for downloading
  35.     if(incompletePDF(location.href)) { history.pushState(null,"",location.href+'.pdf') }
  36.  
  37.     // complete pdf url with filename extension after the document is loaded
  38.     onload = function(){
  39.         if(abstractURL(location.href))
  40.         { document.querySelector("#abs > div.extra-services > div.full-text > ul > li:nth-child(1) > a").href += '.pdf' }
  41.     }
  42. })();